Window ventilator



3113 4, 1933. 1' T. BENNETT 1,916,355

WI NDOW VENTILATOR Filed May 4, 1929 3 Sheets-Sheet l I i E flfis L1 /72avwantoz v want. my

July 4, 1933. I T. BENNETT WINDOW VENTILATOR 3 Sheets-Sheet 2 nvehtoz[FM/N6 Z'l'isNA/ETT Filed May 4, 1929 y 1933- 1. T. BENNETT 1,916,355

WINDOW VENTILATOH Filed May 4, 1929 I5 Sheets-Sheet 3 awvwntoz I/FI/INTBE/VNETI:

Patented July 4, 1933 UNITED STATES PATENT OFFICE IRVING T. BENNETT, OFBROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO METROPOLITANENGINEERING COMPANY, A CORPORATION OF NEW YORK WINDOW VENTILATORApplication filed may 4, 1929. I

cut #1,705,491. The radiator 10 is enclosed This invention relates toapparatus for heating and ventilating buildings and more particularly toa window ventilator for deflecting and controlling a current of airadmitted through an open or partly opened window to a heating radiator.

Among the objects of the invention are to provide a heating andventilating apparatus whereby a uniform distribution of heat and airthroughout a building may be obtained;

to enable any desired heating and ventilating effect to be obtained bysuitable control of the circulation of air and of an apportionment ofthe air to difierent parts of the ventilating and heating appartus; toprovide an apparatus whereby the heating capacity of radiators may beincreased; and to provide a simple apparatus that may be easilyinstalled in existing radiators to control the heating and distributionof air that may be admitted through an open or partly opene'd window.

A further object of the invention is to provide a method and apparatusof so directly ventilating currents in connection with a radiator as tointercept the transmission or escape of heat from the radiator to theadjacent wall of the building and thus avoid the overheating of thelatter.

With these and other objects in view which will more fully appear fromthe following description, the invention comprises the apparatusdescribed in the following spec1fication and claims. V

The various features of the invention are illustrated in theaccompanying drawings, in which Fig. 1 is a vertical sectional viewthrough a portion of a wall and window of a building, and a heating andventilating apparatus embodyinga preferred form of the invention. Figs.2, 3, 4 and 5 are similar vertical cross sections of modified forms ofembodiments of the invention.

Referring more particularly to Fig. 1, the invention is shown as appliedto a radiator 10 spaced a short distance from the inner surface of thewall 11 of a building and beneath a window 12. The radiator 10 may be ofany suitable or standard type as, for,

example, the radiator shown in Murray Pat- Serial No. 360,331.

in a case of metal or other suitable material having a front wall 13 andWall 14 which, with suitable side walls of any desired construction,form a chamber 15. The front wall 13 is extended for some distance abovethe upper end of the radiator 10 and is provided at its upper end with agrille or outlet opening 16. The wall 14 is inclined forwardly at 17above the upper end of the radiator 10 to meet the wall 13 above theopening 16, thus deflecting heated air passing upwardly through thechamber 15 to the outlet opening 16 The upper end of the radiator iscovered by a top plate or cover 18.

The wall 13 is also provided with an inlet opening 19 below the lowerend of the radiaator 10 for the admission of air to the chamber 15 fromthe room to be heated. In addition to the air admitted through the lowerinlet opening 19, a current of air may be supplied through the lowerportion of the window 12 whenever the window sash is raised to theposition indicated in dotted lines. The cold air admitted through thewindow 12 is deflected by means of a deflector plate 20 hinged at 21 onthe top 18 to an inlet grille or opening 22 in the rear part of the top18 and at approximatelythe level of the sill of the window 12. The draftof cold air deflected through the inlet 22 is received in a reardown-draft chamber 23 formed between the inner surface of the wall '11and the wall 14 and side walls of the casing. The draft of cold airpasses downwardly through the down-draft chamber 23 to an opening 24 inthe wall 14 and thus enters the lower part of the radiator chamber 15and, passing upwardly therethrough, is heated by the radiator anddelivered through the outlet 16. The cold air thus delivered through theopening 24 and the air from the room or interior of the buildingentering through the inlet 19 may be. proportioned by means of a hingeddamper 25 in thelower part of the chamber 15 in such a manner as'toapportion the drafts of air to attain any desired ventilating effect.Thus, by swinging the damper 25 forwardly the air admitted through theinlet 19 may be diminished or entirely shut off while by 2 r,ere;sss

swinging the damper to the rear the admising so that it may be swung toany desired sion of air through the inlet 19 may be inposition in thepath of the air passing down creased and the admission of air throughthe Wardly through the chamber 23, and may chamber 23 and opening 24'will be proporthus deflect a greater or less proportion of 5 tionatelydiminished. this air into the upper partof the chamber Inasmuch as thedownward passage of air so that it will pass through the outlet 2'?through the chamber 23 is between the radiawithout coming into contactwith, or into tor and the wall of the building, the downheat receivingrelation to, the radiator 10. wardly passing cold air tends 'tointercept Thus by swinging the damper the tem- 10 heat transmitted fromthe radiator 10 to'the perature of the air leaving the outlet may 7 wall11 and to chill the wall 11 and thus prebe modified or controlled. ventits overheating by the radiator. The In the form of the invention shownin heat thus intercepted serves to preheat the Fig. 5 the inner wall orpartition is omitted incoming cold air and is immediately reand only theheating chamber 15 is formed turned to the interior of the building.about the radiator 10. Accordingly the When it isnot desired to directthe air from damper 25 is omitted and all of the air that the window 12to the radiator 10 but to pass passes through the chamber 15 about theradiit directly into theroom, the deflector plate ator 10 enters throughthe lower inlet 19. 20 is tilted forwardly to the position shown The airentering the window 12 and being 20 in dotted lines. To prevent any airfrom deflected downwardly, passes through a narpassing into the chamber23 when the derow chamber or passage 31 and thence fleeting plate 20 isin its forward position, a through an opening 32 into the upper partdamper 26 is rigidly fastened to the lower or of thechamber 15withoutcontacting with, pivoted part of the plate 20 in such a manner orreceiving heat from, the radiator 10 and,

p 25 as to occupy the unobstructed position shown mixing with the heatedair passes outwardly in fulllines when the plate 20 is tiltedrearthrough the outlet 27. The quantity of air wardly towards thewindow, and to be tilted admitted through the opening 32 may be to theposition shown in dotted lines and controlled byadamper 33 operatingsimilarly thus close the passage 23 to the inlet of air to the damper 30of the form of embodiment .30- when the deflecting plate 20 is moved toits shown in Fig. 4.

forward position. In the latter position the Through the above inventionan apparatus current of air entering through the lower of simpleconstruction is provided whereby part of the window 12 is deflectedupwardly withtheordinary radiatoracirculation of airis away from theradiator. obtained and whereby "a controlled amount of 35 In theembodiment shown in Fig. 2 the fresh air may be heated to a eater orless I wall 14 is continued vertically to the top of extent and added tothe circu ating air. In the chamber 15 and an outlet opening or cases inwhich wind is apt to carry the heat grille 27 is provided in the top ofthe heating from one side of a building to the other this. chamber 15rather than in the side wall as causing an unequal heating, the aboveinr 49 in the form shown in Fig. 1. ln the embodivention enablesthis'defect to be counteracted ment shown in Fig. 2 the upper damper 26by carrying the incoming draft of air directly in its open position liesagainst and 1S supto the radiators, thus heating the air and,fat portedby the partition or wall 141: which is the same time, causing a morerapid heat preferably offset at its upper end to receive transfer fromthe radiators to the air and 5 the damper. thus increasing the capacityof the radiators no In the form of the embodiment shown in to obtain.the desired heating eflect. Fig. 3 the arrangement of the radiator cas-As changes of construction could be made ing and of the down-draft andup-draft within the scope of my invention, it is 1nchambers is similarto that of Fig. 2 but, in tended that all matter contained in the above50 addition to the, deflector 20, asecond deflector description or shownin the accompanying 28 is added whereby by raising the window drawingsshall be interpreted as illustrative 20 above the upper edge of thedeflector 20, and not in a limiting sense. I a portion of the incomingair may be de- What Iclarm is: flected downwardly to the chamber 23,and 1. In combination with a radiator and a 55 a portion deflectedupwardly away from the window of a casing for said radiator havingradiator. a. downward passage back of said radiator In the form ofembodiment shown in Fig. and a passage to said radiator from the lowerat the arrangement of the casing walls and part of said passage, adeflecting damper at chambers and of the deflector 20 is similar to theupper end of said downward passage tilt- I that of Fig. 2 but, insteadof having the able to deflect air from said window into said damper 26rigidly secured to and movable passagepr to close said passage anddirect v with the deflecting plate 20, an opening 29 is said :11: 1nanupward direction.

provided in the upper end of the wall 14 be- 2. A radiator cas ng hav ngan up-draft tween the passages 15 and 23 and a damper chamberforfharadmtor, said chamber hav- 65 30 is mounted at the lower edge ofthis openmg an opening in the lower part of its rear ing an opening inthe lower part of its rear wall and an opening in said wall above saidradiator, a deflector hinged to the upper part.

of the rear wall of saw chamber tiltable to deflect air downwardlytowards said opening, and dampers in said openings.

4. A radiator casing having an up-draft chamber for the radiator, saidchamber having an opening in the lower part of its rear wall, adeflector hinged at the rear of said chamber tiltable to deflect airdownwardly towards said opening, a damper in said opening, the rear wallof said chamber also having an opening in its upper end, and a damperfor said upper opening.

5. Apparatus of the type described having an enclosing casing for aradiator, said casing having an inlet opening in the lower part of onewall, an outlet opening in its upper end and an upper inlet, and adeflector tiltable to a position to deflect a draft of air into saidupper inlet.

6. Apparatus of the type described having an enclosing casing for aradiator, said casing having an inlet opening in the lower part of onewall, an outlet opening in its upper end and an upper inlet, a deflectortiltable to a position to deflect a draft of air into said upper inlet,and a damper to control the admission of deflected air through saidupper in ct.

7. Apparatus of the type described having a. casing to surround aradiator, said casing having an outlet and an upper and a lower inlet,means for deflecting a draft of air into said inlets, and means forproportioning the deflected air between said inlets.

8. Apparatus of the type described which comprises a casing, means fordeflectin a current of air into said casing, said cham er having inletopenings to receive said air from said deflected currents and inletopenings to receive air by thermal displacement, and means forproportioning the air admitted from said separate sources.

9. Apparatus of the type described which comprises a chamber to enclosea radiator, a

1 deflecting plate tiltable on the upper rear ed e of said chamber to aposition to deflect a raft of air'downwardl at the rear of said chamber,said chamber avin in the lower rear wall of said c amber to admit saiddeflected current of air, and an inlet opening in the lower art of thefront wall 'of said casing, and a amper to apportion the admission ofair through said openings.

10. Apparatus of the type described which comprises a chamber to enclosea radiator, a deflecting plate tiltable to a position dean opening flecta draft of air downwardly at the rear of said chamber, said chamberhaving an opening in the lower rear wall of said chamber to admit saiddeflected current of air, and an inlet opening in the lower part of thefront wall of said casing,,a damper to apportion the admission of airthrough said openings, said deflector having a damper movable with themovement of said deflector to stop the downward passage of air at therear of said chamber when said deflector is tilted forwardly.

11. Apparatus of the type described which comprises a radiator casing, adeflector plate at the rear of said casing to direct air from an outsidesource downwardly into said casing, and a second deflector to direct airupwardly away from said casing.

12. In combination with a radiator and a window, a casing for saidradiator said casing being adapted to form an air heating chamber aboutsaid radiator, air inlet and air outletopenings in said chamber, asecond air inlet disposed in said casing adjacent the window andcommunicating lnteriorly with said chamber, means to deflect at least apart of the fresh air entering through the window into said second airinlet and interiorly disposed damper means in said casing between saidsecond air inlet and the said heating chamber.

13. In combination with a radiator and a window, a casing forisaidradiator saidcasing being adapted to form an chamber about saidradiator, air inlet and air outlet openin s in said chamber, a secondair inlet disposed in the casing adjacent the window and communicatinginteriorly withair heating in said casing between the said heatingchamber and the said second air inlet, said damper means also beingdisposed between the said heatin chamber and the said first air inlet.

14. n combination with a radiator and a vwindow, a casing for saidradiator said casing being adapted to form an air heating chamber aboutsaid radiator, air inlet and air outlet openings in said chamber, asecond air inlet dis osed in the casing adjacent the window ancommunicatin interiorly with the top and bottom of said heating chamber,means to deflect at least a part of the fresh air entering through thewindow into said second air inlet, and interiorly disposed damper meansbetween the top of said heating chamber and the said second air inletand interiorly disposed damper means between the bottom of said heatingchamber and the second air inlet, said second damper means also beingdisposed between the said heating chamber and the said first air inlet.

15. Means for admitting fresh heated air charge from the casing at thetop, said means comprising an air duct disposed within the casing,having an intake at the open top of the vcasing and an outlet adjacentthe bottom of the casing and a cowl at the duct intake cooperating withthe window frame and sash being mounted for optional movement to admitof the circulation of air from the room through the duct when the windowsash is closed.

In witness whereof, I have hereunto signed my name. I

IRVING T. BENNETT.

for directing the air into the intake, said cowl

